By now, I've killed Diablo countless times, but one questions always pops in my head. Who did I exactly kill? Diablo or seven Lords of Hell?
In cinematic after act 3, when Imperius sees Diablo, he calls him - "My old enemy". Also, when he sees Diablo as Leah, he shouts at him to show his true form - as Diablo. Actually quote is - "My old enemy, you can't hide from me... no matter what form you choose to wear. Let your true form be revealed... Diablo!"
However, when we fight Diablo, he talks about himself not as one being, but as legion.
So, question is, at the end of the game, who did we kill - Diablo or seven Lords of Hell (Diablo, Belial, Azmadon, Baal, Mephisto, Andariel and Duriel)?